Home / 53,420.94-80,130.65-15,981.30

Finding the Fourth Proportional to 53,420.94, 80,130.65 and 15,981.30

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Solution

The fourth proportional to 53,420.94, 80,130.65 and 15,981.30 is: 23,971.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,420.94 : 80,130.65 = 15,981.30 : x
  2. Step 2: Convert to fraction form
    53,420.94/80,130.65 = 15,981.30/x
  3. Step 3: Cross multiply
    53,420.94x = 80,130.65 × 15,981.30
  4. Step 4: Simplify right side
    53,420.94x = 1,280,591,876.94
  5. Step 5: Solve for x
    x = 1,280,591,876.94/53,420.94
  6. Step 6: Final answer
    x = 23,971.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.